./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/eca-rers2012/Problem16_label27.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'b8b419a7bad122135c5018a0fcde1c414772cf931d8588f0cdb1172e002f61ab'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label27.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8b419a7bad122135c5018a0fcde1c414772cf931d8588f0cdb1172e002f61ab --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:01:28,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:01:28,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 20:01:28,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:01:28,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:01:28,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:01:28,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:01:28,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:01:28,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:01:28,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:01:28,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:01:28,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:01:28,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:01:28,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:01:28,768 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:01:28,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:01:28,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:01:28,769 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:01:28,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:01:28,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:01:28,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:01:28,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:01:28,772 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8b419a7bad122135c5018a0fcde1c414772cf931d8588f0cdb1172e002f61ab [2024-11-06 20:01:28,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:01:28,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:01:28,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:01:28,998 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:01:28,998 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:01:29,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label27.c [2024-11-06 20:01:30,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:01:30,577 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:01:30,578 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label27.c [2024-11-06 20:01:30,589 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4d1a9a9a8/99b92aa09c88478a91c37063447f92de/FLAGe85466509 [2024-11-06 20:01:30,604 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4d1a9a9a8/99b92aa09c88478a91c37063447f92de [2024-11-06 20:01:30,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:01:30,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:01:30,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:01:30,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:01:30,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:01:30,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:01:30" (1/1) ... [2024-11-06 20:01:30,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148fb973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:30, skipping insertion in model container [2024-11-06 20:01:30,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:01:30" (1/1) ... [2024-11-06 20:01:30,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:01:30,749 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label27.c[1550,1563] [2024-11-06 20:01:30,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:01:30,954 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:01:30,962 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label27.c[1550,1563] [2024-11-06 20:01:31,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:01:31,095 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:01:31,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31 WrapperNode [2024-11-06 20:01:31,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:01:31,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:01:31,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:01:31,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:01:31,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,216 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-06 20:01:31,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:01:31,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:01:31,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:01:31,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:01:31,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,342 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 20:01:31,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:01:31,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:01:31,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:01:31,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:01:31,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (1/1) ... [2024-11-06 20:01:31,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:01:31,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:01:31,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 20:01:31,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 20:01:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:01:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 20:01:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:01:31,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:01:31,562 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:01:31,563 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:01:33,134 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-06 20:01:33,135 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:01:33,156 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:01:33,157 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 20:01:33,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:33 BoogieIcfgContainer [2024-11-06 20:01:33,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:01:33,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:01:33,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:01:33,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:01:33,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:01:30" (1/3) ... [2024-11-06 20:01:33,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c23a934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:01:33, skipping insertion in model container [2024-11-06 20:01:33,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:31" (2/3) ... [2024-11-06 20:01:33,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c23a934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:01:33, skipping insertion in model container [2024-11-06 20:01:33,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:33" (3/3) ... [2024-11-06 20:01:33,172 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label27.c [2024-11-06 20:01:33,192 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:01:33,192 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:01:33,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:01:33,281 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67499cb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:01:33,282 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:01:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:33,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-06 20:01:33,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:33,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:33,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:33,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:33,305 INFO L85 PathProgramCache]: Analyzing trace with hash -569068670, now seen corresponding path program 1 times [2024-11-06 20:01:33,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:33,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343515312] [2024-11-06 20:01:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:33,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343515312] [2024-11-06 20:01:33,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343515312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:33,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:33,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:33,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627635583] [2024-11-06 20:01:33,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:33,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:33,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:33,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:33,585 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:34,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:34,841 INFO L93 Difference]: Finished difference Result 1122 states and 2103 transitions. [2024-11-06 20:01:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:34,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-06 20:01:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:34,855 INFO L225 Difference]: With dead ends: 1122 [2024-11-06 20:01:34,855 INFO L226 Difference]: Without dead ends: 662 [2024-11-06 20:01:34,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:34,862 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 375 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:34,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 254 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:01:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-06 20:01:34,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-06 20:01:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.518910741301059) internal successors, (1004), 661 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:34,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1004 transitions. [2024-11-06 20:01:34,921 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1004 transitions. Word has length 12 [2024-11-06 20:01:34,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:34,921 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1004 transitions. [2024-11-06 20:01:34,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:34,921 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1004 transitions. [2024-11-06 20:01:34,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-06 20:01:34,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:34,923 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:34,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 20:01:34,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:34,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1208748508, now seen corresponding path program 1 times [2024-11-06 20:01:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:34,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554675971] [2024-11-06 20:01:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:34,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:35,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554675971] [2024-11-06 20:01:35,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554675971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:35,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:35,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:35,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137021468] [2024-11-06 20:01:35,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:35,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:35,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:35,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:35,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:35,148 INFO L87 Difference]: Start difference. First operand 662 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:36,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:36,373 INFO L93 Difference]: Finished difference Result 1980 states and 3007 transitions. [2024-11-06 20:01:36,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:36,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-06 20:01:36,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:36,378 INFO L225 Difference]: With dead ends: 1980 [2024-11-06 20:01:36,378 INFO L226 Difference]: Without dead ends: 1320 [2024-11-06 20:01:36,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:36,383 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 269 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:36,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 216 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:01:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-06 20:01:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-06 20:01:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.4564063684609552) internal successors, (1921), 1319 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1921 transitions. [2024-11-06 20:01:36,429 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1921 transitions. Word has length 80 [2024-11-06 20:01:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:36,429 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1921 transitions. [2024-11-06 20:01:36,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1921 transitions. [2024-11-06 20:01:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 20:01:36,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:36,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:36,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 20:01:36,433 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:36,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash 776137925, now seen corresponding path program 1 times [2024-11-06 20:01:36,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:36,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255089128] [2024-11-06 20:01:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:36,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:36,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255089128] [2024-11-06 20:01:36,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255089128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355705812] [2024-11-06 20:01:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:36,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:36,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:36,564 INFO L87 Difference]: Start difference. First operand 1320 states and 1921 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:37,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:37,793 INFO L93 Difference]: Finished difference Result 3954 states and 5758 transitions. [2024-11-06 20:01:37,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:37,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-06 20:01:37,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:37,801 INFO L225 Difference]: With dead ends: 3954 [2024-11-06 20:01:37,801 INFO L226 Difference]: Without dead ends: 2636 [2024-11-06 20:01:37,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:37,803 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 369 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:37,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:01:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-06 20:01:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2024-11-06 20:01:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.3248576850094878) internal successors, (3491), 2635 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3491 transitions. [2024-11-06 20:01:37,833 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3491 transitions. Word has length 91 [2024-11-06 20:01:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:37,834 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3491 transitions. [2024-11-06 20:01:37,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:37,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3491 transitions. [2024-11-06 20:01:37,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-06 20:01:37,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:37,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:37,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 20:01:37,835 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:37,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:37,836 INFO L85 PathProgramCache]: Analyzing trace with hash 199537731, now seen corresponding path program 1 times [2024-11-06 20:01:37,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:37,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812819515] [2024-11-06 20:01:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:37,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:37,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:37,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812819515] [2024-11-06 20:01:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812819515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:37,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:37,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035399206] [2024-11-06 20:01:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:37,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:37,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:37,986 INFO L87 Difference]: Start difference. First operand 2636 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:38,935 INFO L93 Difference]: Finished difference Result 6586 states and 8550 transitions. [2024-11-06 20:01:38,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:38,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-06 20:01:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:38,945 INFO L225 Difference]: With dead ends: 6586 [2024-11-06 20:01:38,946 INFO L226 Difference]: Without dead ends: 3952 [2024-11-06 20:01:38,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:38,949 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 278 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:38,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 83 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 20:01:38,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-06 20:01:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-06 20:01:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.2171602126044039) internal successors, (4809), 3951 states have internal predecessors, (4809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4809 transitions. [2024-11-06 20:01:38,995 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4809 transitions. Word has length 143 [2024-11-06 20:01:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:38,996 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4809 transitions. [2024-11-06 20:01:38,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4809 transitions. [2024-11-06 20:01:39,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-06 20:01:39,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:39,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:39,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 20:01:39,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:39,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:39,003 INFO L85 PathProgramCache]: Analyzing trace with hash -777424065, now seen corresponding path program 1 times [2024-11-06 20:01:39,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:39,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356020754] [2024-11-06 20:01:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:39,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:39,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356020754] [2024-11-06 20:01:39,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356020754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:39,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:39,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:39,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16209336] [2024-11-06 20:01:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:39,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:39,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:39,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:39,235 INFO L87 Difference]: Start difference. First operand 3952 states and 4809 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:40,733 INFO L93 Difference]: Finished difference Result 9547 states and 11836 transitions. [2024-11-06 20:01:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:40,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-11-06 20:01:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:40,747 INFO L225 Difference]: With dead ends: 9547 [2024-11-06 20:01:40,748 INFO L226 Difference]: Without dead ends: 5597 [2024-11-06 20:01:40,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:40,753 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 330 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:40,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 247 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 20:01:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2024-11-06 20:01:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597. [2024-11-06 20:01:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.2101501072194425) internal successors, (6772), 5596 states have internal predecessors, (6772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6772 transitions. [2024-11-06 20:01:40,835 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6772 transitions. Word has length 247 [2024-11-06 20:01:40,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:40,835 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6772 transitions. [2024-11-06 20:01:40,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6772 transitions. [2024-11-06 20:01:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-06 20:01:40,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:40,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:40,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 20:01:40,837 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:40,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:40,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2131504422, now seen corresponding path program 1 times [2024-11-06 20:01:40,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:40,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069921242] [2024-11-06 20:01:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:40,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:41,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:41,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:41,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069921242] [2024-11-06 20:01:41,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069921242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:41,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55598580] [2024-11-06 20:01:41,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:41,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:41,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:41,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:41,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:41,259 INFO L87 Difference]: Start difference. First operand 5597 states and 6772 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:42,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:42,342 INFO L93 Difference]: Finished difference Result 11521 states and 13883 transitions. [2024-11-06 20:01:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:01:42,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2024-11-06 20:01:42,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:42,355 INFO L225 Difference]: With dead ends: 11521 [2024-11-06 20:01:42,356 INFO L226 Difference]: Without dead ends: 5926 [2024-11-06 20:01:42,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:01:42,361 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:42,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 20:01:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2024-11-06 20:01:42,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5926. [2024-11-06 20:01:42,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5925 states have (on average 1.199493670886076) internal successors, (7107), 5925 states have internal predecessors, (7107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 7107 transitions. [2024-11-06 20:01:42,441 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 7107 transitions. Word has length 257 [2024-11-06 20:01:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:42,441 INFO L471 AbstractCegarLoop]: Abstraction has 5926 states and 7107 transitions. [2024-11-06 20:01:42,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 7107 transitions. [2024-11-06 20:01:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-06 20:01:42,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:42,444 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:42,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 20:01:42,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:42,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash -906618025, now seen corresponding path program 1 times [2024-11-06 20:01:42,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:42,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607071944] [2024-11-06 20:01:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:42,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:42,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:42,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607071944] [2024-11-06 20:01:42,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607071944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:42,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:42,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 20:01:42,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961677164] [2024-11-06 20:01:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:42,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 20:01:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:42,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 20:01:42,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:42,877 INFO L87 Difference]: Start difference. First operand 5926 states and 7107 transitions. Second operand has 7 states, 7 states have (on average 49.142857142857146) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:44,322 INFO L93 Difference]: Finished difference Result 11380 states and 13724 transitions. [2024-11-06 20:01:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 20:01:44,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.142857142857146) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2024-11-06 20:01:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:44,337 INFO L225 Difference]: With dead ends: 11380 [2024-11-06 20:01:44,337 INFO L226 Difference]: Without dead ends: 5597 [2024-11-06 20:01:44,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:44,344 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:44,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 20:01:44,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2024-11-06 20:01:44,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597. [2024-11-06 20:01:44,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.0816654753395283) internal successors, (6053), 5596 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6053 transitions. [2024-11-06 20:01:44,428 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6053 transitions. Word has length 344 [2024-11-06 20:01:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:44,428 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6053 transitions. [2024-11-06 20:01:44,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.142857142857146) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6053 transitions. [2024-11-06 20:01:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-06 20:01:44,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:44,432 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:44,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 20:01:44,432 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:44,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:44,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1427787007, now seen corresponding path program 1 times [2024-11-06 20:01:44,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:44,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000278700] [2024-11-06 20:01:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:44,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-06 20:01:44,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:44,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000278700] [2024-11-06 20:01:44,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000278700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:01:44,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188133479] [2024-11-06 20:01:44,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:44,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:01:44,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:01:44,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:01:44,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 20:01:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:44,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:01:44,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:01:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-06 20:01:45,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:01:45,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188133479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:45,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:01:45,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-06 20:01:45,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986154269] [2024-11-06 20:01:45,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:45,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:45,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:45,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:45,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:01:45,211 INFO L87 Difference]: Start difference. First operand 5597 states and 6053 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:45,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:45,951 INFO L93 Difference]: Finished difference Result 7244 states and 7749 transitions. [2024-11-06 20:01:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:45,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2024-11-06 20:01:45,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:45,964 INFO L225 Difference]: With dead ends: 7244 [2024-11-06 20:01:45,964 INFO L226 Difference]: Without dead ends: 7242 [2024-11-06 20:01:45,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:01:45,966 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:45,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2024-11-06 20:01:46,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 6255. [2024-11-06 20:01:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 6254 states have (on average 1.0767508794371603) internal successors, (6734), 6254 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:46,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6734 transitions. [2024-11-06 20:01:46,032 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 6734 transitions. Word has length 351 [2024-11-06 20:01:46,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:46,033 INFO L471 AbstractCegarLoop]: Abstraction has 6255 states and 6734 transitions. [2024-11-06 20:01:46,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 6734 transitions. [2024-11-06 20:01:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2024-11-06 20:01:46,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:46,041 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:46,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 20:01:46,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:01:46,242 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:46,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash 979288482, now seen corresponding path program 1 times [2024-11-06 20:01:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:46,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483590557] [2024-11-06 20:01:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:46,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-06 20:01:46,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:46,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483590557] [2024-11-06 20:01:46,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483590557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:46,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:46,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:46,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691417349] [2024-11-06 20:01:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:46,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:46,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:46,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:46,724 INFO L87 Difference]: Start difference. First operand 6255 states and 6734 transitions. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:47,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:47,478 INFO L93 Difference]: Finished difference Result 14482 states and 15690 transitions. [2024-11-06 20:01:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:47,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 587 [2024-11-06 20:01:47,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:47,489 INFO L225 Difference]: With dead ends: 14482 [2024-11-06 20:01:47,489 INFO L226 Difference]: Without dead ends: 8558 [2024-11-06 20:01:47,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:47,492 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:47,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 38 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2024-11-06 20:01:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 8558. [2024-11-06 20:01:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 1.0781816057029332) internal successors, (9226), 8557 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 9226 transitions. [2024-11-06 20:01:47,574 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 9226 transitions. Word has length 587 [2024-11-06 20:01:47,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:47,574 INFO L471 AbstractCegarLoop]: Abstraction has 8558 states and 9226 transitions. [2024-11-06 20:01:47,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 9226 transitions. [2024-11-06 20:01:47,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-11-06 20:01:47,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:47,588 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:47,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 20:01:47,588 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:47,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:47,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1473674154, now seen corresponding path program 1 times [2024-11-06 20:01:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:47,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936329006] [2024-11-06 20:01:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:47,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 603 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-06 20:01:48,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:48,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936329006] [2024-11-06 20:01:48,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936329006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:48,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:48,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:48,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406489043] [2024-11-06 20:01:48,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:48,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:48,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:48,061 INFO L87 Difference]: Start difference. First operand 8558 states and 9226 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:49,192 INFO L93 Difference]: Finished difference Result 20404 states and 22031 transitions. [2024-11-06 20:01:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:01:49,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 668 [2024-11-06 20:01:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:49,207 INFO L225 Difference]: With dead ends: 20404 [2024-11-06 20:01:49,207 INFO L226 Difference]: Without dead ends: 12177 [2024-11-06 20:01:49,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:49,213 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 270 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:49,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 91 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:01:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-11-06 20:01:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 11519. [2024-11-06 20:01:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.0766626150373328) internal successors, (12401), 11518 states have internal predecessors, (12401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 12401 transitions. [2024-11-06 20:01:49,295 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 12401 transitions. Word has length 668 [2024-11-06 20:01:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:49,295 INFO L471 AbstractCegarLoop]: Abstraction has 11519 states and 12401 transitions. [2024-11-06 20:01:49,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 12401 transitions. [2024-11-06 20:01:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-06 20:01:49,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:49,302 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:49,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 20:01:49,302 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -409977399, now seen corresponding path program 1 times [2024-11-06 20:01:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:49,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253014615] [2024-11-06 20:01:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:49,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 775 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-06 20:01:49,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:49,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253014615] [2024-11-06 20:01:49,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253014615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:49,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:49,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371694771] [2024-11-06 20:01:49,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:49,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:49,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:49,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:49,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:49,814 INFO L87 Difference]: Start difference. First operand 11519 states and 12401 transitions. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:50,930 INFO L93 Difference]: Finished difference Result 22707 states and 24469 transitions. [2024-11-06 20:01:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:01:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 706 [2024-11-06 20:01:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:50,947 INFO L225 Difference]: With dead ends: 22707 [2024-11-06 20:01:50,947 INFO L226 Difference]: Without dead ends: 11519 [2024-11-06 20:01:50,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:50,957 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 268 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:50,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 123 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 20:01:50,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11519 states. [2024-11-06 20:01:51,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11519 to 11519. [2024-11-06 20:01:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.0762285118944261) internal successors, (12396), 11518 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 12396 transitions. [2024-11-06 20:01:51,087 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 12396 transitions. Word has length 706 [2024-11-06 20:01:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:51,088 INFO L471 AbstractCegarLoop]: Abstraction has 11519 states and 12396 transitions. [2024-11-06 20:01:51,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 12396 transitions. [2024-11-06 20:01:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2024-11-06 20:01:51,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:51,099 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:51,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 20:01:51,100 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:51,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash -869106153, now seen corresponding path program 1 times [2024-11-06 20:01:51,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:51,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729377683] [2024-11-06 20:01:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-11-06 20:01:51,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:51,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729377683] [2024-11-06 20:01:51,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729377683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:51,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:51,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665162456] [2024-11-06 20:01:51,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:51,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:51,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:51,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:51,417 INFO L87 Difference]: Start difference. First operand 11519 states and 12396 transitions. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:52,195 INFO L93 Difference]: Finished difference Result 25010 states and 27079 transitions. [2024-11-06 20:01:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 767 [2024-11-06 20:01:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:52,215 INFO L225 Difference]: With dead ends: 25010 [2024-11-06 20:01:52,215 INFO L226 Difference]: Without dead ends: 14151 [2024-11-06 20:01:52,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:52,225 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:52,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 437 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14151 states. [2024-11-06 20:01:52,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 13493. [2024-11-06 20:01:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0661873702935072) internal successors, (14385), 13492 states have internal predecessors, (14385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 14385 transitions. [2024-11-06 20:01:52,334 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 14385 transitions. Word has length 767 [2024-11-06 20:01:52,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:52,335 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 14385 transitions. [2024-11-06 20:01:52,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 14385 transitions. [2024-11-06 20:01:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2024-11-06 20:01:52,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:52,343 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:52,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 20:01:52,343 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:52,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1403301518, now seen corresponding path program 1 times [2024-11-06 20:01:52,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:52,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560821784] [2024-11-06 20:01:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:52,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-06 20:01:52,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:52,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560821784] [2024-11-06 20:01:52,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560821784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:52,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:52,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:52,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080131066] [2024-11-06 20:01:52,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:52,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:52,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:52,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:52,631 INFO L87 Difference]: Start difference. First operand 13493 states and 14385 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:53,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:53,241 INFO L93 Difference]: Finished difference Result 31590 states and 33779 transitions. [2024-11-06 20:01:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:53,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 768 [2024-11-06 20:01:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:53,257 INFO L225 Difference]: With dead ends: 31590 [2024-11-06 20:01:53,257 INFO L226 Difference]: Without dead ends: 16454 [2024-11-06 20:01:53,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:53,270 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 327 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:53,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 430 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:01:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16454 states. [2024-11-06 20:01:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 16454. [2024-11-06 20:01:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0512368565003343) internal successors, (17296), 16453 states have internal predecessors, (17296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:53,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 17296 transitions. [2024-11-06 20:01:53,389 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 17296 transitions. Word has length 768 [2024-11-06 20:01:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:53,389 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 17296 transitions. [2024-11-06 20:01:53,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:53,389 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 17296 transitions. [2024-11-06 20:01:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2024-11-06 20:01:53,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:53,405 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:53,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 20:01:53,406 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:53,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:53,406 INFO L85 PathProgramCache]: Analyzing trace with hash -803903772, now seen corresponding path program 1 times [2024-11-06 20:01:53,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:53,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357219681] [2024-11-06 20:01:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:53,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 726 proven. 0 refuted. 0 times theorem prover too weak. 2217 trivial. 0 not checked. [2024-11-06 20:01:53,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:53,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357219681] [2024-11-06 20:01:53,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357219681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:53,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:53,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:53,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874656559] [2024-11-06 20:01:53,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:53,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:53,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:53,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:53,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:53,882 INFO L87 Difference]: Start difference. First operand 16454 states and 17296 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:54,526 INFO L93 Difference]: Finished difference Result 32248 states and 33928 transitions. [2024-11-06 20:01:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:54,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1207 [2024-11-06 20:01:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:54,546 INFO L225 Difference]: With dead ends: 32248 [2024-11-06 20:01:54,547 INFO L226 Difference]: Without dead ends: 16454 [2024-11-06 20:01:54,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:54,559 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 229 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:54,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 422 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:01:54,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16454 states. [2024-11-06 20:01:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 15796. [2024-11-06 20:01:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15796 states, 15795 states have (on average 1.0427350427350428) internal successors, (16470), 15795 states have internal predecessors, (16470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16470 transitions. [2024-11-06 20:01:54,752 INFO L78 Accepts]: Start accepts. Automaton has 15796 states and 16470 transitions. Word has length 1207 [2024-11-06 20:01:54,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:54,753 INFO L471 AbstractCegarLoop]: Abstraction has 15796 states and 16470 transitions. [2024-11-06 20:01:54,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 15796 states and 16470 transitions. [2024-11-06 20:01:54,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2024-11-06 20:01:54,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:54,781 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:54,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 20:01:54,781 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:54,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:54,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1223019813, now seen corresponding path program 1 times [2024-11-06 20:01:54,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:54,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801935096] [2024-11-06 20:01:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:54,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3174 backedges. 762 proven. 0 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked. [2024-11-06 20:01:55,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:55,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801935096] [2024-11-06 20:01:55,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801935096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:55,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:55,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569522865] [2024-11-06 20:01:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:55,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:55,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:55,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:55,282 INFO L87 Difference]: Start difference. First operand 15796 states and 16470 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:56,059 INFO L93 Difference]: Finished difference Result 34222 states and 35774 transitions. [2024-11-06 20:01:56,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:56,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1223 [2024-11-06 20:01:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:56,074 INFO L225 Difference]: With dead ends: 34222 [2024-11-06 20:01:56,074 INFO L226 Difference]: Without dead ends: 17112 [2024-11-06 20:01:56,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:56,086 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 240 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:56,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 410 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-06 20:01:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 15138. [2024-11-06 20:01:56,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 15137 states have (on average 1.0344850366651253) internal successors, (15659), 15137 states have internal predecessors, (15659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15659 transitions. [2024-11-06 20:01:56,202 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 15659 transitions. Word has length 1223 [2024-11-06 20:01:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:56,203 INFO L471 AbstractCegarLoop]: Abstraction has 15138 states and 15659 transitions. [2024-11-06 20:01:56,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 15659 transitions. [2024-11-06 20:01:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1322 [2024-11-06 20:01:56,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:56,218 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:56,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 20:01:56,218 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:56,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:56,219 INFO L85 PathProgramCache]: Analyzing trace with hash 705636061, now seen corresponding path program 1 times [2024-11-06 20:01:56,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:56,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827308208] [2024-11-06 20:01:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3440 backedges. 2396 proven. 0 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2024-11-06 20:01:56,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827308208] [2024-11-06 20:01:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827308208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:56,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:56,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819320136] [2024-11-06 20:01:56,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:56,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:56,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:56,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:56,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:56,691 INFO L87 Difference]: Start difference. First operand 15138 states and 15659 transitions. Second operand has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:57,281 INFO L93 Difference]: Finished difference Result 29616 states and 30654 transitions. [2024-11-06 20:01:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:57,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1321 [2024-11-06 20:01:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:57,295 INFO L225 Difference]: With dead ends: 29616 [2024-11-06 20:01:57,295 INFO L226 Difference]: Without dead ends: 15138 [2024-11-06 20:01:57,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:57,305 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:57,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 420 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-06 20:01:57,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 14809. [2024-11-06 20:01:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.0284305780659104) internal successors, (15229), 14808 states have internal predecessors, (15229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15229 transitions. [2024-11-06 20:01:57,412 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 15229 transitions. Word has length 1321 [2024-11-06 20:01:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:57,413 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 15229 transitions. [2024-11-06 20:01:57,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 15229 transitions. [2024-11-06 20:01:57,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1332 [2024-11-06 20:01:57,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:57,428 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:57,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 20:01:57,429 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:57,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:57,429 INFO L85 PathProgramCache]: Analyzing trace with hash -756993809, now seen corresponding path program 1 times [2024-11-06 20:01:57,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:57,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95756636] [2024-11-06 20:01:57,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:57,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2839 backedges. 1850 proven. 6 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2024-11-06 20:01:58,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:58,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95756636] [2024-11-06 20:01:58,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95756636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:01:58,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704618695] [2024-11-06 20:01:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:58,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:01:58,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:01:58,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:01:58,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 20:01:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:58,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:01:58,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:01:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2839 backedges. 1577 proven. 0 refuted. 0 times theorem prover too weak. 1262 trivial. 0 not checked. [2024-11-06 20:01:59,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:01:59,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704618695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:59,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:01:59,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-06 20:01:59,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330634888] [2024-11-06 20:01:59,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:59,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:59,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:59,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:59,340 INFO L87 Difference]: Start difference. First operand 14809 states and 15229 transitions. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:59,956 INFO L93 Difference]: Finished difference Result 28958 states and 29794 transitions. [2024-11-06 20:01:59,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:59,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1331 [2024-11-06 20:01:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:59,968 INFO L225 Difference]: With dead ends: 28958 [2024-11-06 20:01:59,968 INFO L226 Difference]: Without dead ends: 14809 [2024-11-06 20:01:59,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 1331 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:59,977 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 83 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:59,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 377 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:01:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14809 states. [2024-11-06 20:02:00,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14809 to 14480. [2024-11-06 20:02:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0261758408729884) internal successors, (14858), 14479 states have internal predecessors, (14858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14858 transitions. [2024-11-06 20:02:00,118 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14858 transitions. Word has length 1331 [2024-11-06 20:02:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:00,119 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14858 transitions. [2024-11-06 20:02:00,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14858 transitions. [2024-11-06 20:02:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1366 [2024-11-06 20:02:00,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:00,132 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:00,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 20:02:00,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-06 20:02:00,333 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:00,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1354123029, now seen corresponding path program 1 times [2024-11-06 20:02:00,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:00,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488887449] [2024-11-06 20:02:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:00,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3376 backedges. 686 proven. 0 refuted. 0 times theorem prover too weak. 2690 trivial. 0 not checked. [2024-11-06 20:02:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488887449] [2024-11-06 20:02:01,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488887449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:01,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:01,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:01,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373392963] [2024-11-06 20:02:01,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:01,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:01,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:01,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:01,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:01,226 INFO L87 Difference]: Start difference. First operand 14480 states and 14858 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:01,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:01,926 INFO L93 Difference]: Finished difference Result 28300 states and 29052 transitions. [2024-11-06 20:02:01,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:01,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1365 [2024-11-06 20:02:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:01,940 INFO L225 Difference]: With dead ends: 28300 [2024-11-06 20:02:01,940 INFO L226 Difference]: Without dead ends: 14480 [2024-11-06 20:02:01,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:01,949 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 236 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:01,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 365 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-06 20:02:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-06 20:02:02,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.021962842737758) internal successors, (14797), 14479 states have internal predecessors, (14797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14797 transitions. [2024-11-06 20:02:02,048 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14797 transitions. Word has length 1365 [2024-11-06 20:02:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:02,049 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14797 transitions. [2024-11-06 20:02:02,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14797 transitions. [2024-11-06 20:02:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1694 [2024-11-06 20:02:02,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:02,067 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:02,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 20:02:02,067 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:02,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:02,067 INFO L85 PathProgramCache]: Analyzing trace with hash 992609611, now seen corresponding path program 1 times [2024-11-06 20:02:02,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:02,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876806131] [2024-11-06 20:02:02,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:02,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4738 backedges. 3318 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2024-11-06 20:02:03,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:03,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876806131] [2024-11-06 20:02:03,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876806131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:03,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:03,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:02:03,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756915497] [2024-11-06 20:02:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:03,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:02:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:03,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:02:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:02:03,629 INFO L87 Difference]: Start difference. First operand 14480 states and 14797 transitions. Second operand has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:04,386 INFO L93 Difference]: Finished difference Result 28310 states and 28940 transitions. [2024-11-06 20:02:04,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 20:02:04,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1693 [2024-11-06 20:02:04,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:04,398 INFO L225 Difference]: With dead ends: 28310 [2024-11-06 20:02:04,398 INFO L226 Difference]: Without dead ends: 14490 [2024-11-06 20:02:04,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:04,406 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:04,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 437 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14490 states. [2024-11-06 20:02:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14490 to 14480. [2024-11-06 20:02:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0218247116513572) internal successors, (14795), 14479 states have internal predecessors, (14795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14795 transitions. [2024-11-06 20:02:04,501 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14795 transitions. Word has length 1693 [2024-11-06 20:02:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:04,502 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14795 transitions. [2024-11-06 20:02:04,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14795 transitions. [2024-11-06 20:02:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1742 [2024-11-06 20:02:04,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:04,522 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:04,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 20:02:04,522 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:04,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash 103850996, now seen corresponding path program 1 times [2024-11-06 20:02:04,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:04,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701732086] [2024-11-06 20:02:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:04,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5950 backedges. 3543 proven. 0 refuted. 0 times theorem prover too weak. 2407 trivial. 0 not checked. [2024-11-06 20:02:05,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:05,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701732086] [2024-11-06 20:02:05,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701732086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:05,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:05,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:05,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223479991] [2024-11-06 20:02:05,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:05,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:05,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:05,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:05,653 INFO L87 Difference]: Start difference. First operand 14480 states and 14795 transitions. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:06,221 INFO L93 Difference]: Finished difference Result 28958 states and 29595 transitions. [2024-11-06 20:02:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:06,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1741 [2024-11-06 20:02:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:06,234 INFO L225 Difference]: With dead ends: 28958 [2024-11-06 20:02:06,234 INFO L226 Difference]: Without dead ends: 15138 [2024-11-06 20:02:06,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:06,243 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:06,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 431 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:02:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-06 20:02:06,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 15138. [2024-11-06 20:02:06,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 15137 states have (on average 1.021206315650393) internal successors, (15458), 15137 states have internal predecessors, (15458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15458 transitions. [2024-11-06 20:02:06,355 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 15458 transitions. Word has length 1741 [2024-11-06 20:02:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:06,355 INFO L471 AbstractCegarLoop]: Abstraction has 15138 states and 15458 transitions. [2024-11-06 20:02:06,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 15458 transitions. [2024-11-06 20:02:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2024-11-06 20:02:06,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:06,375 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:06,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 20:02:06,376 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:06,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:06,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1538526917, now seen corresponding path program 1 times [2024-11-06 20:02:06,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:06,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799142281] [2024-11-06 20:02:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:06,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5764 backedges. 3138 proven. 0 refuted. 0 times theorem prover too weak. 2626 trivial. 0 not checked. [2024-11-06 20:02:07,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:07,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799142281] [2024-11-06 20:02:07,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799142281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:07,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:07,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:07,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155853261] [2024-11-06 20:02:07,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:07,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:07,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:07,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:07,639 INFO L87 Difference]: Start difference. First operand 15138 states and 15458 transitions. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:08,320 INFO L93 Difference]: Finished difference Result 33235 states and 33929 transitions. [2024-11-06 20:02:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1764 [2024-11-06 20:02:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:08,337 INFO L225 Difference]: With dead ends: 33235 [2024-11-06 20:02:08,337 INFO L226 Difference]: Without dead ends: 18757 [2024-11-06 20:02:08,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:08,348 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 209 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:08,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 42 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:08,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18757 states. [2024-11-06 20:02:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18757 to 16125. [2024-11-06 20:02:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0204663855122798) internal successors, (16454), 16124 states have internal predecessors, (16454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16454 transitions. [2024-11-06 20:02:08,473 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16454 transitions. Word has length 1764 [2024-11-06 20:02:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:08,474 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16454 transitions. [2024-11-06 20:02:08,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16454 transitions. [2024-11-06 20:02:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2024-11-06 20:02:08,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:08,493 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:08,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 20:02:08,494 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:08,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1743372058, now seen corresponding path program 1 times [2024-11-06 20:02:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155043923] [2024-11-06 20:02:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5399 backedges. 3639 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2024-11-06 20:02:09,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:09,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155043923] [2024-11-06 20:02:09,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155043923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:09,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:09,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:02:09,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514804170] [2024-11-06 20:02:09,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:09,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:02:09,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:09,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:02:09,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:02:09,834 INFO L87 Difference]: Start difference. First operand 16125 states and 16454 transitions. Second operand has 4 states, 4 states have (on average 212.5) internal successors, (850), 4 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:10,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:10,588 INFO L93 Difference]: Finished difference Result 31590 states and 32244 transitions. [2024-11-06 20:02:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:02:10,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 212.5) internal successors, (850), 4 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1766 [2024-11-06 20:02:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:10,605 INFO L225 Difference]: With dead ends: 31590 [2024-11-06 20:02:10,605 INFO L226 Difference]: Without dead ends: 16125 [2024-11-06 20:02:10,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:10,615 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 120 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:10,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 554 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:10,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-06 20:02:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 16125. [2024-11-06 20:02:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0201562887620939) internal successors, (16449), 16124 states have internal predecessors, (16449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16449 transitions. [2024-11-06 20:02:10,732 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16449 transitions. Word has length 1766 [2024-11-06 20:02:10,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:10,733 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16449 transitions. [2024-11-06 20:02:10,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 212.5) internal successors, (850), 4 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:10,733 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16449 transitions. [2024-11-06 20:02:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1806 [2024-11-06 20:02:10,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:10,752 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:10,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-06 20:02:10,752 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:10,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash -456227752, now seen corresponding path program 1 times [2024-11-06 20:02:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:10,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347048336] [2024-11-06 20:02:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:10,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:12,838 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 4850 proven. 202 refuted. 0 times theorem prover too weak. 1425 trivial. 0 not checked. [2024-11-06 20:02:12,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:12,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347048336] [2024-11-06 20:02:12,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347048336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:12,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799916539] [2024-11-06 20:02:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:12,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:12,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:12,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:12,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 20:02:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:13,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:02:13,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 3415 proven. 0 refuted. 0 times theorem prover too weak. 3062 trivial. 0 not checked. [2024-11-06 20:02:14,033 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:14,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799916539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:14,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:14,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-06 20:02:14,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383857376] [2024-11-06 20:02:14,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:14,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:14,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:14,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:14,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:02:14,036 INFO L87 Difference]: Start difference. First operand 16125 states and 16449 transitions. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:14,648 INFO L93 Difference]: Finished difference Result 31590 states and 32234 transitions. [2024-11-06 20:02:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:14,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1805 [2024-11-06 20:02:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:14,663 INFO L225 Difference]: With dead ends: 31590 [2024-11-06 20:02:14,663 INFO L226 Difference]: Without dead ends: 16125 [2024-11-06 20:02:14,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1812 GetRequests, 1806 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:02:14,673 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:14,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 425 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-06 20:02:14,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 16125. [2024-11-06 20:02:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0199082113619449) internal successors, (16445), 16124 states have internal predecessors, (16445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16445 transitions. [2024-11-06 20:02:14,831 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16445 transitions. Word has length 1805 [2024-11-06 20:02:14,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:14,832 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16445 transitions. [2024-11-06 20:02:14,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:14,832 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16445 transitions. [2024-11-06 20:02:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1969 [2024-11-06 20:02:14,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:14,853 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:14,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 20:02:15,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:15,055 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:15,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash -598240873, now seen corresponding path program 1 times [2024-11-06 20:02:15,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:15,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090151419] [2024-11-06 20:02:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:15,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:17,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7098 backedges. 4994 proven. 531 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2024-11-06 20:02:17,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:17,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090151419] [2024-11-06 20:02:17,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090151419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:17,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765581668] [2024-11-06 20:02:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:17,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:17,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:17,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 20:02:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:18,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:02:18,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7098 backedges. 3683 proven. 0 refuted. 0 times theorem prover too weak. 3415 trivial. 0 not checked. [2024-11-06 20:02:18,500 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:18,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765581668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:18,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:18,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-06 20:02:18,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936359935] [2024-11-06 20:02:18,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:18,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:18,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:18,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:18,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:02:18,502 INFO L87 Difference]: Start difference. First operand 16125 states and 16445 transitions. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:19,131 INFO L93 Difference]: Finished difference Result 31590 states and 32226 transitions. [2024-11-06 20:02:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:19,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1968 [2024-11-06 20:02:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:19,145 INFO L225 Difference]: With dead ends: 31590 [2024-11-06 20:02:19,146 INFO L226 Difference]: Without dead ends: 16125 [2024-11-06 20:02:19,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1977 GetRequests, 1971 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:02:19,154 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 123 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:19,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 410 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:19,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-06 20:02:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15467. [2024-11-06 20:02:19,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15466 states have (on average 1.0187508082244925) internal successors, (15756), 15466 states have internal predecessors, (15756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 15756 transitions. [2024-11-06 20:02:19,260 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 15756 transitions. Word has length 1968 [2024-11-06 20:02:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:19,261 INFO L471 AbstractCegarLoop]: Abstraction has 15467 states and 15756 transitions. [2024-11-06 20:02:19,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 15756 transitions. [2024-11-06 20:02:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2109 [2024-11-06 20:02:19,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:19,321 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:19,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 20:02:19,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-06 20:02:19,522 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:19,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:19,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1488916106, now seen corresponding path program 1 times [2024-11-06 20:02:19,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:19,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78726818] [2024-11-06 20:02:19,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 9324 backedges. 6584 proven. 140 refuted. 0 times theorem prover too weak. 2600 trivial. 0 not checked. [2024-11-06 20:02:21,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78726818] [2024-11-06 20:02:21,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78726818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469279588] [2024-11-06 20:02:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:21,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:21,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:21,289 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:21,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 20:02:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:21,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 2446 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:02:21,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9324 backedges. 5392 proven. 0 refuted. 0 times theorem prover too weak. 3932 trivial. 0 not checked. [2024-11-06 20:02:21,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:21,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469279588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:21,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-06 20:02:21,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862190205] [2024-11-06 20:02:21,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:21,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:21,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:21,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:21,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:02:21,851 INFO L87 Difference]: Start difference. First operand 15467 states and 15756 transitions. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:22,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:22,466 INFO L93 Difference]: Finished difference Result 32248 states and 32854 transitions. [2024-11-06 20:02:22,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:22,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2108 [2024-11-06 20:02:22,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:22,479 INFO L225 Difference]: With dead ends: 32248 [2024-11-06 20:02:22,479 INFO L226 Difference]: Without dead ends: 17441 [2024-11-06 20:02:22,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2113 GetRequests, 2108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:02:22,487 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 221 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:22,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 426 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:22,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17441 states. [2024-11-06 20:02:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17441 to 16454. [2024-11-06 20:02:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0179906400048624) internal successors, (16749), 16453 states have internal predecessors, (16749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16749 transitions. [2024-11-06 20:02:22,602 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 16749 transitions. Word has length 2108 [2024-11-06 20:02:22,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:22,602 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 16749 transitions. [2024-11-06 20:02:22,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 16749 transitions. [2024-11-06 20:02:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2140 [2024-11-06 20:02:22,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:22,661 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:22,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 20:02:22,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-06 20:02:22,861 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:22,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:22,862 INFO L85 PathProgramCache]: Analyzing trace with hash -481806121, now seen corresponding path program 1 times [2024-11-06 20:02:22,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:22,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255871648] [2024-11-06 20:02:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9772 backedges. 7203 proven. 78 refuted. 0 times theorem prover too weak. 2491 trivial. 0 not checked. [2024-11-06 20:02:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255871648] [2024-11-06 20:02:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255871648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652795284] [2024-11-06 20:02:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:24,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:24,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:24,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:24,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 20:02:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:25,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:02:25,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9772 backedges. 1297 proven. 0 refuted. 0 times theorem prover too weak. 8475 trivial. 0 not checked. [2024-11-06 20:02:25,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:25,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652795284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:25,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:25,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-06 20:02:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882293875] [2024-11-06 20:02:25,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:25,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:25,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:25,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:02:25,287 INFO L87 Difference]: Start difference. First operand 16454 states and 16749 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:26,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:26,038 INFO L93 Difference]: Finished difference Result 36525 states and 37190 transitions. [2024-11-06 20:02:26,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:26,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2139 [2024-11-06 20:02:26,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:26,059 INFO L225 Difference]: With dead ends: 36525 [2024-11-06 20:02:26,060 INFO L226 Difference]: Without dead ends: 20731 [2024-11-06 20:02:26,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2144 GetRequests, 2139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:02:26,071 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 234 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:26,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 43 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:26,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20731 states. [2024-11-06 20:02:26,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20731 to 16125. [2024-11-06 20:02:26,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0177995534606796) internal successors, (16411), 16124 states have internal predecessors, (16411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16411 transitions. [2024-11-06 20:02:26,286 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16411 transitions. Word has length 2139 [2024-11-06 20:02:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:26,287 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16411 transitions. [2024-11-06 20:02:26,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16411 transitions. [2024-11-06 20:02:26,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2253 [2024-11-06 20:02:26,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:26,342 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:26,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 20:02:26,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-06 20:02:26,543 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:26,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash 694480706, now seen corresponding path program 1 times [2024-11-06 20:02:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:26,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209416114] [2024-11-06 20:02:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9931 backedges. 7313 proven. 78 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2024-11-06 20:02:28,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209416114] [2024-11-06 20:02:28,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209416114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:28,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718285191] [2024-11-06 20:02:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:28,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:28,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:28,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:28,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 20:02:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:29,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 20:02:29,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9931 backedges. 6462 proven. 67 refuted. 0 times theorem prover too weak. 3402 trivial. 0 not checked. [2024-11-06 20:02:34,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 20:02:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9931 backedges. 5454 proven. 0 refuted. 0 times theorem prover too weak. 4477 trivial. 0 not checked. [2024-11-06 20:02:36,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718285191] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:36,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-06 20:02:36,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 9 [2024-11-06 20:02:36,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167882604] [2024-11-06 20:02:36,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:36,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:36,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:36,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-06 20:02:36,796 INFO L87 Difference]: Start difference. First operand 16125 states and 16411 transitions. Second operand has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:37,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:37,526 INFO L93 Difference]: Finished difference Result 32577 states and 33155 transitions. [2024-11-06 20:02:37,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:37,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2252 [2024-11-06 20:02:37,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:37,541 INFO L225 Difference]: With dead ends: 32577 [2024-11-06 20:02:37,541 INFO L226 Difference]: Without dead ends: 17112 [2024-11-06 20:02:37,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4508 GetRequests, 4501 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-06 20:02:37,551 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 267 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:37,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 35 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:37,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-06 20:02:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 16454. [2024-11-06 20:02:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0165319394639276) internal successors, (16725), 16453 states have internal predecessors, (16725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16725 transitions. [2024-11-06 20:02:37,665 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 16725 transitions. Word has length 2252 [2024-11-06 20:02:37,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:37,666 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 16725 transitions. [2024-11-06 20:02:37,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 16725 transitions. [2024-11-06 20:02:37,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2303 [2024-11-06 20:02:37,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:37,692 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:37,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-06 20:02:37,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:37,893 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:37,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:37,893 INFO L85 PathProgramCache]: Analyzing trace with hash -499695956, now seen corresponding path program 1 times [2024-11-06 20:02:37,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:37,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072097898] [2024-11-06 20:02:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:37,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10370 backedges. 6404 proven. 79 refuted. 0 times theorem prover too weak. 3887 trivial. 0 not checked. [2024-11-06 20:02:40,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:40,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072097898] [2024-11-06 20:02:40,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072097898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:40,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188096556] [2024-11-06 20:02:40,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:40,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:40,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:40,155 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:40,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 20:02:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:40,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 2653 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 20:02:40,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10370 backedges. 6538 proven. 250 refuted. 0 times theorem prover too weak. 3582 trivial. 0 not checked. [2024-11-06 20:02:41,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 20:02:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 10370 backedges. 5607 proven. 0 refuted. 0 times theorem prover too weak. 4763 trivial. 0 not checked. [2024-11-06 20:02:42,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188096556] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:42,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-06 20:02:42,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-11-06 20:02:42,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145637175] [2024-11-06 20:02:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:42,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:42,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:02:42,572 INFO L87 Difference]: Start difference. First operand 16454 states and 16725 transitions. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:43,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:43,298 INFO L93 Difference]: Finished difference Result 32906 states and 33448 transitions. [2024-11-06 20:02:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:43,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2302 [2024-11-06 20:02:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:43,313 INFO L225 Difference]: With dead ends: 32906 [2024-11-06 20:02:43,313 INFO L226 Difference]: Without dead ends: 16783 [2024-11-06 20:02:43,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4606 GetRequests, 4601 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:02:43,322 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 86 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:43,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 16 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16783 states. [2024-11-06 20:02:43,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 16454. [2024-11-06 20:02:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0163496018963107) internal successors, (16722), 16453 states have internal predecessors, (16722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16722 transitions. [2024-11-06 20:02:43,436 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 16722 transitions. Word has length 2302 [2024-11-06 20:02:43,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:43,437 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 16722 transitions. [2024-11-06 20:02:43,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 16722 transitions. [2024-11-06 20:02:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2370 [2024-11-06 20:02:43,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:43,464 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:43,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 20:02:43,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-06 20:02:43,665 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:43,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:43,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1225441069, now seen corresponding path program 1 times [2024-11-06 20:02:43,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:43,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880354499] [2024-11-06 20:02:43,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:43,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 11250 backedges. 6805 proven. 79 refuted. 0 times theorem prover too weak. 4366 trivial. 0 not checked. [2024-11-06 20:02:46,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:46,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880354499] [2024-11-06 20:02:46,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880354499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:46,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500637388] [2024-11-06 20:02:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:46,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:46,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:46,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:46,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-06 20:02:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:46,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 2740 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:02:46,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 11250 backedges. 6866 proven. 0 refuted. 0 times theorem prover too weak. 4384 trivial. 0 not checked. [2024-11-06 20:02:47,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:47,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500637388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:47,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:47,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 20:02:47,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367244750] [2024-11-06 20:02:47,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:47,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:47,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:47,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:47,244 INFO L87 Difference]: Start difference. First operand 16454 states and 16722 transitions. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:47,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:47,926 INFO L93 Difference]: Finished difference Result 33235 states and 33781 transitions. [2024-11-06 20:02:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:47,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2369 [2024-11-06 20:02:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:47,939 INFO L225 Difference]: With dead ends: 33235 [2024-11-06 20:02:47,939 INFO L226 Difference]: Without dead ends: 17112 [2024-11-06 20:02:47,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2372 GetRequests, 2369 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:47,947 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 52 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:47,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 87 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-06 20:02:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 16454. [2024-11-06 20:02:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0162280435178994) internal successors, (16720), 16453 states have internal predecessors, (16720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:48,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16720 transitions. [2024-11-06 20:02:48,059 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 16720 transitions. Word has length 2369 [2024-11-06 20:02:48,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:48,060 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 16720 transitions. [2024-11-06 20:02:48,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:48,060 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 16720 transitions. [2024-11-06 20:02:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2533 [2024-11-06 20:02:48,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:48,089 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:48,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-06 20:02:48,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-06 20:02:48,290 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:48,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:48,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1919664966, now seen corresponding path program 1 times [2024-11-06 20:02:48,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:48,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337377729] [2024-11-06 20:02:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:48,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12146 backedges. 8657 proven. 78 refuted. 0 times theorem prover too weak. 3411 trivial. 0 not checked. [2024-11-06 20:02:50,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:50,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337377729] [2024-11-06 20:02:50,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337377729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:50,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560042170] [2024-11-06 20:02:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:50,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:50,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:50,415 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:02:50,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-06 20:02:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:50,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 20:02:50,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12146 backedges. 8197 proven. 269 refuted. 0 times theorem prover too weak. 3680 trivial. 0 not checked. [2024-11-06 20:02:53,655 INFO L311 TraceCheckSpWp]: Computing backward predicates...